20335016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 24117784

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 41, 52, 76, 82, 104, 152, 164, 247, 251, 328, 494, 502, 533, 779, 988, 1004, 1066, 1558, 1976, 2008, 2132, 3116, 3263, 4264, 4769, 6232, 6526, 9538, 10127, 10291, 13052, 19076, 20254, 20582, 26104, 38152, 40508, 41164, 61997, 81016, 82328, 123994, 133783, 195529, 247988, 267566, 391058, 495976, 535132, 782116, 1070264, 1564232, 2541877, 5083754, 10167508, 20335016]

約数ペア:

[(1, 20335016), (2, 10167508), (4, 5083754), (8, 2541877), (13, 1564232), (19, 1070264), (26, 782116), (38, 535132), (41, 495976), (52, 391058), (76, 267566), (82, 247988), (104, 195529), (152, 133783), (164, 123994), (247, 82328), (251, 81016), (328, 61997), (494, 41164), (502, 40508), (533, 38152), (779, 26104), (988, 20582), (1004, 20254), (1066, 19076), (1558, 13052), (1976, 10291), (2008, 10127), (2132, 9538), (3116, 6526), (3263, 6232), (4264, 4769)]